When an electric current is flowing through a wire, there is a magnetic <em>field</em> produced. The lines of magnetic force are circles around the wire.
Ok so the formula is d=vi(t)+½at² and when you substitute it you should get 172.5meters
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Answer:
5.03 m
Explanation:
The wavelength of a wave is given by

where
v is the speed of the wave
f is the frequency of the wave
For the sonar signal in this problem,


Substituting into the equation, we find the wavelength:

To increase it's size
Waxing is the opposite of waning, which is to decrease.